Perforator.



s. 11. IB RG. PERFORATOR.

APPLICATION FILED OUT. 14, 1909.

987,201 Patented Mar.21, 1911.

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UNITED STATES PATENT OFFICE.

SVEN I-IJ. WIBERG, OF READING, MASSACHUSETTS, ASSIGNOR TO BONG BINDER COM- Ill-ANY, 0F BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

PERFORATOR.

To all whom it may concern:

Be it-known that I, SVEN HJ. WIBERG, a

citizen of the United States, residing at in sheet material, the same being particularly adapted to punch. holes in series in sheets of paper, such as the leaves of loose leaf ledgers and the like, in which it is desirable to punch at one punching operation a series of holes at a certain distance from the edge of the sheet, said holes also being located at certain distances apart and at certain distances from the top of said sheet.

The invention consists in a punching mechanism which is duplicated when desired to form a series of punching mechanisms, all of the different members of this series of punching mechanisms being connected together, so that they may be all operated at one time preferably by hand, and the different units or punching mechanisms being adjustable relatively to each other.

As illustrated in the drawings, the specific punch is formed in duplicate, .that is, with two legs, or male punching members, adapted to cooperate with two holes in the female member, or die, but without departing from the spirit of this invention, the punch may be made single instead of double, if so desired, and the punches, while shown cylindrical in form, may be made of any desired cross sectional contour.

The invention further consists in the combination and arrangement of parts set forth in the following specification and particularly pointed out in the claims thereof.

Referring to the drawings, Figure 1 is a plan view of my improved perforator showing two punching mechanisms connected together. Fig. 2 is a front elevation of the same. Fig. 3 is a side elevation of the same, as viewed from the left of Fig. 2. Fig. l is a sectional elevation, taken on line 1- 1, Fig.1. Fig. 5 is a detail View of a modified form of my invention. Fig. 6 is a detail section of the cross-bar taken on line 66, Fig. 5. Fig. 7 is a detail side elevation of a frame of modified construction.

Specification of Letters Patent. Patented Dial. 21, 1911. Application filed October 14, 1909.

Serial No. 522,558.

Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, 6 and 7 are two punching mechanisms constructed in accordance with my invention, and duplicates of each other, it being understood that when desired any number of such punching mechanisms may be used and connected together to operate simultaneously, as hereinafter described. The said punching mechanisms 6 and 7 being duplicates of each other, the following specific description of punching mechanism 6 will apply equally well to punching mechanism 7. Referring then to the punching mechanism (Figs. 1 to 4, inclusive) 6, 8 is a base, formed preferably of sheet metal, and having a flange 9 extending therearound, and adapted to rest upon any suitable support. 10 and 11 are guide plates. The guide plate 10 is fastened to the base 8 and extends upwardly therefrom at an angle to the upper portion 12, which is preferably parallel to the top of the base 8. The bottom 13 of the guideplate 11 is preferably parallel'to the top of the base 8 and is provided with a flange 14, bent thereunder as seen in Fig. 3, and constituting a gage against which one edge of the paper which is to be punched rests. The space 15 enables the paper to be inserted between the portion 13 of the gage 11 and the top of the base 8, prior to the punching operation. From the bottom portion 13, the guide plate 11 extends upwardly, forming a vertical plate 16. against which the right hand edge, Fig 3, of the portion -12 of the guide plate 10, rests. Holes 17, 17 are formed in the top of the base 8 in alinement with the legs 18, 18 of the U-shaped punch 19, said legs being joined together by a cross-bar 20. A spring 21 encircles one of the legs 18 and bears at its lower end against the plate 13, and at its upper end against a cross-pin 22, in said leg 18, said cross-pin constituting a stop, which, when the punch is raised, bears against the under side of the top plate 12. A lever 23 bears against the cross-bar 20, and is arranged to rock upon a rod 24:, which extends through two cars 25, 25 formed in the upper portion of a bearing plate 26, which rod is held stationary within said ears by means of a clamp screw 27.

When a plurality of the punching mechanisms hereinbefore specifically described is employed, the rod24 extends across from one. I erate the punch. It will be understood that to the other, and is adjustably fastened thereto by the clamp screws 27, 27. The levers 23, 23, by means of which the punches are forced downwardly on the material, are also connected together by a rod 28, so that all the levers in a series may be operated simultaneously by pressing downwardly upon said rod 28, and rocking the levers 23, 23, which, bearing against the cross-bars 20,

'20 of the different punches, force said punches downwardly, the same being guided by suitable holes in the plates 12 and 13, until the punches are forced through the paper and into the holes 17, 17 in the base 8. The flanges 14, upon the different guide plates 11, constitute gages to locate one edge of the sheet of paper which is being punched relatively to the centers of the different punches. In order to space the different punching mechanisms at any required distance apart, graduations 29 are provided upon the rod 24. For the purpose of locating another edge of the paper which is to be punched at the desired distance" from the punches of mechanism 7 forinstance, a gage rod is provided, having a downwardly turned end 31, against the inner edge of which one edge of the paper to be punched is placed. This gage rod is slidably mounted upon the guide plate 11, said guide plate being preferably bent at 32 to form a guide for said rod, while the rod is held within the semicircular depression formed at 32 by springs 33, 33, the lower ends of whichbear against said rod, the upper ends of which are fastened to the vertical portion 16 of the I guide plate 11.

In operating my improved perforator, the sheet of material to be punched is placed within the space 15 between the plate 13, and thetop of the base 8, one edge of the paper rest-ing againstthe flange 14, another edge and the springs 21, 21 carry of the aper resting against the downwardly projec ingend 31 of the gage rod 30. The operator then presses downwardly upon the rod 28, thus rocking the levers 23 upon the pivotal rod 24, and the levers pressing downwardly upon the cross-bars 20, 20, cause the punches to move downwardly, the legs 18, 18 sliding. in the holes provided therefor in the plates 12 and 13, until the lower ends of said legs, which are suitably formed and sharpened, ass through the paper and into the holes 1%, 17 thus punching said paper as desired. The operator then releases his pressure upon the rod 28, the different punches 19, 19 upwardly out of the holes 17 17, and out of the paper to the position illustrated in the drawings.

It will be understood that where a single punching mechanism is used the rods 24 and 28 are dispensed with, and the operator presses. downwardly. upon the lever 23 to opthe the frame of the punching mechanism consists, as a whole, of the base 8, the guide plate 10, and the guide plate 11 together with the bearing plate 26', that the upper portion of the guide plate 10 serves as one guide for the le s of tie punch and that the lower portion of the guide plate llserves as another guide for said punch. The plate 13, a portion of the guide plate 11, also acts as a stripper to strip the paper from the punches as the same are carried upwardly by the springs 21 after the punching operation is completed.

In Figs. 5 and O I have illustrated a modified form of punch in which the U-shaped punch 19 has a cross-bar 20 divided into two parts 20 and 20 the part 20 extending beneath the pa1't'20 and in cross section said parts are shown in Fig. 6, that portion of the part 20 which extends beneath a portion of .the part 20 being V-shaped and extending same as that hereinbefore described and shown in Figs. 1 to 4 inclusive. The legs 18 and 18 are provided with springs 21 and 21 respectively, which operate to move punches 1S and 18 upwardly against the action of the lever 23.

The object of the construction liereinbefore set forth and illustrated in Figs. 5 and '6 is to enable the operator of the punch mechanism to disconnect one leg of the U- shaped punch and operate the other at will when he desires to punch a single hole, and this may be done by swinging the punch 18 around to the position illustrated in dotted lines in Fig. 5 and'then operating the punch 18, or the punch '18 may be swung around in like manner and the punch 18 operated by their common actuating lever 23.

In Fig. 7 a modified form of frame is illustrated in which the base 8 and guide plate 10 are the same as the form illustrated in F igs. 1 to 4 inclusive, but the guide plate 11 is extended upwardly and has cars 25 formed thereon, constituting bearings for the rod 24, and the purpose of this construction is to simplify the frame by substituting for the plates 11 and 26 asingle plate 11 with ears 25 formed thereon.

Having thus describedmy invent-ion, what I claim and desire by Letters Patent to secure is:

1. A perforator having, in combination, a plurality of frames, a rod to --which said frames are adjustably fastened, a complete punching mechanism mounted on 'each of said frames, respectively, and comprising a U-shaped punch consisting of two legs joined together by a cross-bar and a lever pivoted to said rod and adapted to bear against said cross-bar.

2. A perforator having, in combination, a plurality of frames, a rod to which said frames are adjustably fastened, a complete punching mechanism mounted on each of said frames, respectively, and comprising a U-shaped punch consisting of two legs joined together by a cross-bar and a lever pivoted to said rod and adapted to bear against said cross-bar, and a rod joining said levers together.

3. A perforator having, in, combination, a plurality of frames, a rod to which said frames are adjustably fastened, a complete punching mechanism mounted on each of said frames, respectively, and comprising a U-shaped punch consisting of two legs joined together by a cross-bar and a lever pivoted to said rod and adapted to bear against said cross-bar, and a gage rod joining said frames together.

4. A perforator having, in combination, a frame formed of sheet metal and comprising a base, two guide plates and a bearing plate,

fast to said base, a U-shaped punch consist- I ing of two legs joined together by a crossbar, said legs constituting the male members of said punch and adapted to slide in said guide plates, a gage for the material to be punched, said bearing plate supported upon said last named guide plate, said base provided with two holes adapted to cooperate with said legs in punching the material,

a rod clamped to said bearing plate, and a lever pivoted to said rod and adapted to bear against said cross-bar.

5. A perforator having, in combination, a frame formed of sheet metal and comprising a base, two guide plates and a bearing plate fast to said base, a U-shaped punch consisting of two legs joined together by a crossbar, said legs constituting the male members of said punch and adapted to slide in said guide plates, a gage for the material to be punched, said bearlng plate supported upon said last named guide plate, said base provided with two holes adapted to cooperate with said legs in punching the material, a rod clamped to said bearing plate, a lever pivoted to said rod and adapted to bear against said crossbar, and a spring encircling one of said legs between said guide plates and adapted to move said punch in the opposite direction to that in which said lever is adapted to move the same.

6. A perforator having, in combination a U-shaped punch, consisting of two legs joined together by a cross-bar in two parts, said legs constituting the male members of said punch, and means to reciprocate said punch.

7. A perforator having, in combination, a U-shaped punch, consisting of two legs joined together by a cross-bar in two parts, one part of said cross-bar projecting into a slot provided in the other part of said cross-bar, said legs constituting the male members of said punch, and means to reciprocate said punch.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

' SVEN I-IJ. VVIBERG. Witnesses:

CHARLES S. GooDING, LoUIs A. JONES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

